Method for simultaneously scrubbing cement kiln exhaust gas and

Details Method for simultaneously scrubbing cement kiln exhaust gas and Method for simultaneously scrubbing cement kiln exhaust gas and

1988-03-04

1989-08-22

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423208, 423232, 423235, 423242, 423246, 71 31, 106103, C01B 1716, C01B 2100, C01B 1700

Patent

active

RE0330310

ABSTRACT:
This invention relates to an apparatus and method for simultaneously scrubbing acidic exhaust gases and removing metal salts from alkaline waste dust from a cement plant or the like thereby producing useful products from what would otherwise be wasted. In essence the two wastes are combined in water and the resulting solution and precipitate separated in a tank. The solution is useful both to cool incoming waste gas and as a fertilizer, whilst the precipitate is suitable as kiln feed stock.

REFERENCES:
patent: 3929968 (1975-12-01), Taub
patent: 4263264 (1981-04-01), Ikeda et al.
patent: 4276272 (1981-06-01), Schlager et al.

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